摘要
Abstract
In order to improve the forming accuracy of blade profiles and reduce energy consumption,this paper first introduces the structural characteristics and processing requirements of closed integral impellers in view of the challenges and difficulties faced by the current processing of closed integral impellers.Secondly,the technical principles and characteristics of closed integral impeller EDM are studied.Finally,taking the"large closed integral impeller with a diameter of 550mm"as an example,the EDM process is explained from three aspects:machining conditions,machining implementation,and machining result analysis.The results show that the electric discharge machining technology of closed integral impellers has the characteristics of no cutting force limitation,no workpiece hardness limitation,and high machining accuracy,which meets the requirements for high-precision machining of closed integral impellers.It is hoped that through this research,it will provide effective reference for the later development of closed integral impeller machining work.关键词
闭式整体叶轮/电火花加工/技术特点/加工要求/技术原理Key words
closed integral impeller/electric discharge machining/technical characteristics/machining requirements/technical principles分类
矿业与冶金
